# ClockMaster vs Twixt Time

The clearest difference is price: Twixt Time at $9.99 against ClockMaster's $49.99. Twixt Time also leads on in-app purchases (none vs 1) and update cadence (every 2 months vs every 5 months). ClockMaster's advantage is review sentiment (59% vs 39%) and ratings volume (52 vs 14). On rating, ads and device support there is nothing between them.

ClockMaster costs $49.99 and Twixt Time $9.99 up front. ClockMaster sells 1 one-off in-app purchase. Twixt Time asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 3.8 for ClockMaster against 3.9 for Twixt Time. Both are backed by a comparable volume of ratings — 52 and 14 respectively. Written reviews are what separate them: 59% of ClockMaster's written reviews are positive against 39% of Twixt Time's.

ClockMaster ships an update every 5 months, Twixt Time every 2 months. Both last shipped on November 1, 2026.

## The numbers

| Metric | ClockMaster | Twixt Time |
| --- | --- | --- |
| Price | $49.99 | **$9.99** |
| Rating | [3.8 (52 ratings)](https://appshunter.io/ios/app/clockmaster-time-regulator/id413901882/reviews) | **[3.9 (14 ratings)](https://appshunter.io/ios/app/twixt-time/id541686012/reviews)** |
| Number of ratings | **52** | 14 |
| Positive reviews | **58.6% of reviews** | 39.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 5 MB | 3 MB |
| Requires iOS | 18.0 | **12.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ONYX Apps](https://appshunter.io/developer/356553882) | [Coldflower Design Corp.](https://appshunter.io/developer/380539256) |

## What reviewers say

### ClockMaster

[App page](https://appshunter.io/ios/app/clockmaster-time-regulator/id413901882)

This app analyzes the ticking sound of mechanical pendulum clocks to determine their running rate and error. It's designed for accurate long-term measurements, allowing users to regulate clocks efficiently. Advanced features include printable reports and data export for in-depth analysis.

**Highlights:** Analyzes escapement ticking sound, Measures running rate in Beats Per Hour (B/H), Reports error in Seconds Per Day (±S/D), Supports long-term measurements, Generates printable PDF reports (Pro), Exports raw data as .csv file (Pro)

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ClockMaster Pro | $29.99 | one-time |

**What reviewers like**

- 👍 Works very well
- 👍 Accurately sets beat and calibrates time
- 👍 Good alternative to expensive dedicated instruments
- 👍 Elegant display for setting beat and symmetry
- 👍 Works well for professional clock repairers

**What reviewers complain about**

- 😞 Frustrating data handling
- 😞 Spreadsheet export issues
- 😞 iPhone notifications stop measurements
- 😞 Does not work for 400-day clocks
- 😞 External mic option missing

**Reported bugs**

- Data lost if app stops unexpectedly
- iPhone notifications interrupt measurements
- External mic option not available
- App freezes after iOS upgrade
- Screen touch points unresponsive

**Requested features**

- Printable protocol like a timegrapher
- Beat delta info on regulation screen
- Option to manually restart measurement and append
- Undocumented units in spreadsheet export
- Include actual time in spreadsheet export


### Twixt Time

[App page](https://appshunter.io/ios/app/twixt-time/id541686012)

This app helps you track the long-term accuracy of your watches and clocks. By taking precisely timed photos of your timepiece's dial, it analyzes the time displayed against internet-accurate servers to calculate its rate and cumulative gain or loss.

**Highlights:** Track watch and clock accuracy, Precisely timed dial snapshots, Analyze rate and cumulative gain/loss, Supports various dial configurations, Automatic timezone monitoring, Works with GMT and chronograph watches

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 💡 Unique way of capturing time
- 👍 Simple yet effective tracking
- 👍 Very useful and easy to use
- 👍 Works like a charm
- 👍 Surprisingly effective

**What reviewers complain about**

- 🐛 Tedious and inaccurate
- 🐛 Manual hand location required
- 🐛 Struggles with mid-way points
- 🐛 Not automatic hand recognition
- 🐛 Expensive for missing features

**Reported bugs**

- Always displays 12+ hrs
- Crashes constantly
- App crashes every time you try to take a picture
- App crashes when resizing a picture
- Camera takes forever to come on or just does not

**Requested features**

- Ability to export/import timelines
- Delete a separate timeline
- Reset button for manual time changes
- Remove restriction on one snapshot a day
- Allow manual entry of time


## Frequently asked questions

### Is ClockMaster free?

ClockMaster costs $49.99, and also offers in-app purchases.

### Is Twixt Time free?

Twixt Time costs $9.99, with no in-app purchases.

### Which has better reviews, ClockMaster or Twixt Time?

Twixt Time is rated higher. ClockMaster averages 3.8 out of 5 from 52 ratings, while Twixt Time averages 3.9 from 14 ratings.

### Do ClockMaster or Twixt Time have ads?

Neither ClockMaster nor Twixt Time shows ads.

### Which is updated more often, ClockMaster or Twixt Time?

ClockMaster ships an update every 5 months, and Twixt Time every 2 months. Most recently, ClockMaster was updated on November 1, 2026 and Twixt Time on November 1, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*